No Internet Connection Iphone 12. You can force restart iphone 12, iphone 12 pro, iphone 12 mini, and iphone 12 pro max by pressing volume up, volume down, then holding the power button until you see the apple logo on the screen. If your iphone or ipad cellular data is not working, you can try powering down your phone and turning it back on, checking for carrier or system updates, turning cellular data or airplane mode off and on again, and, as the last resort, performing a factory reset.
If the cellular data switch is white and flipped to the left, tap it once to toggle cellular data back on. Cellular data is on and is also apart of my plan. I can't use the internet connection on my apple iphone 12 pro ios 14.1.